CN205020429U - A scraper for drive valve rod dirt - Google Patents
A scraper for drive valve rod dirt Download PDFInfo
- Publication number
- CN205020429U CN205020429U CN201520728403.8U CN201520728403U CN205020429U CN 205020429 U CN205020429 U CN 205020429U CN 201520728403 U CN201520728403 U CN 201520728403U CN 205020429 U CN205020429 U CN 205020429U
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- scraper
- valve rod
- double wedge
- pointed tooth
- valve
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Abstract
The utility model discloses a scraper for drive valve rod dirt relates to pipeline valve gate technical field. This scraper includes annular scraper body, and the inside wall of scraper body is provided with at least round point tooth and round arc dogtooth at least, the protruding gear position of arc in the top of point tooth, the tip of every sharp tooth and the surface point contact of valve rod, the terminal surface of every arc dogtooth and the exterior surface to surface contact of valve rod. The utility model discloses the scraper can effectively strike off the scale deposit on valve rod surface, effectively improves the use reliability and the leakproofness of valve.
Description
Technical field
The utility model relates to pipeline valve technical field, is specifically a kind of scraper for removing valve rod dirt.
Background technology
In fields such as oil, chemical industry, iron and steel, metallurgy and electric power, black water regulating valve is widely used, and it mainly plays the effect of the fluid media (medium) blocking or connect in pipeline.
Existing black water regulating valve many employings straight travel type plunger valve, such plunger valve moves up and down by valve rod band movable valve plug the fluid realizing valve and controls, and realizes sealing by the valve seat that delivery port is located in spool extruding.But find in actual use; because black water regulating valve is used for the medium occasion with hard solid particle medium, easily coking, easily stickup; using afterwards for a long time; stem surface in valve body can deposit some harder deposits usually; if processed not in time; when valve rod moves up and down; the rigid deposit of stem surface can hinder the motion of valve rod; stuck phenomenon is also there will be time serious; not only have impact on the normal use of black water regulating valve; and long-term hard object friction also can affect the sealing of valve, makes the service life of product short.
Utility model content
For the defect existed in prior art, the purpose of this utility model is to provide a kind of scraper for removing valve rod dirt, effectively can strike off the fouling of stem surface, effectively improves dependability and the sealing of valve.
For reaching above object, the technical scheme that the utility model is taked is: a kind of scraper for removing valve rod dirt, comprise the scraper body of annular, the madial wall of scraper body is provided with at least one circle pointed tooth and at least one circle arc double wedge, described arc double wedge is positioned at the top of described pointed tooth, the end of each pointed tooth and the outer surface point cantact of valve rod, the end face of each arc double wedge and the appearance plane-plane contact of valve rod.
On the basis of technique scheme, the pointed tooth often enclosed, the arc double wedge often enclosed all are uniformly distributed.
On the basis of technique scheme, the madial wall of described scraper body is provided with two circle pointed tooths and two circle arc double wedges, and the pointed tooth of two circle pointed tooths shifts to install, and the double wedge of two circle arc double wedges shifts to install.
On the basis of technique scheme, the pointed tooth quantity of often enclosing is 8 ~ 10; The arc double wedge quantity of often enclosing is 3 ~ 5.
On the basis of technique scheme, the pointed tooth quantity of often enclosing is 8; The arc double wedge quantity of often enclosing is 3.
On the basis of technique scheme, this scraper adopts tungsten carbide material to make, and hardness is HRA >=88.
The beneficial effects of the utility model are:
1, in the utility model, the madial wall of scraper body is provided with at least one circle pointed tooth and at least one circle arc double wedge, arc double wedge is positioned at the top of pointed tooth, the end of each pointed tooth and the exterior surface of valve rod, and the end face of each arc double wedge and the outer surface of valve rod are fitted.During use, the often circle pointed tooth of scraper and stem surface form point cantact, can be that strip strikes off by the fouling of stem surface; The often circle arc double wedge of scraper contacts with stem surface forming surface, can be that bulk is struck off by the fouling of stem surface, thus achieve the automatically cleaning of valve rod dirt.This scraper not only elimination effect is desirable, rapid operation, convenient, and effectively prevent because hard object friction causes the problem of valve seal difference, and then ensure that the service life of product.
2, in the utility model, the pointed tooth often enclosed, the arc double wedge often enclosed all are uniformly distributed, and scraper can be removed more equably when striking off valve rod fouling.
3, in the utility model, the madial wall of scraper body is provided with two circle pointed tooths and two circle arc double wedges, and two circle pointed tooths, two circle arc double wedges all shift to install, and make the face of effectively striking off of scraper comparatively large, automatically cleaning effect is better.
4, scraper of the present utility model adopts tungsten carbide material to make, and its hardness reaches HRA >=88, effectively can remove various obstinate fouling, and antiscour, resistance to corrosion are strong, long service life.
5, the utility model structure is simple, and low cost of manufacture, result of use is good, economic and practical.
Accompanying drawing explanation
Fig. 1 is for removing the structural representation of the scraper of valve rod dirt in the utility model embodiment;
Fig. 2 is the profile of Fig. 1 along A-A ＇ direction;
Fig. 3 is the profile of Fig. 1 along B-B ＇ direction;
Fig. 4 is the profile of Fig. 1 along C-C ＇ direction;
Fig. 5 is the profile of Fig. 1 along D-D ＇ direction;
Fig. 6 is the structural representation that the utility model scraper is applied to black water regulating valve.
Reference numeral: 1-drive unit; 2-valve rod; 3-valve gap; 4-valve body, 4a-opening, 4b-water inlet flow channel, 4c-outlet passage; 5-filler; 6-scraper, 6a-scraper body, 6b-pointed tooth, 6c-arc double wedge; 7-spool; 8-valve seat.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
See shown in Fig. 1 to Fig. 5, the utility model embodiment provides a kind of scraper for removing valve rod dirt, comprise the scraper body 6a of annular, the madial wall of scraper body 6a is provided with at least one circle leg-of-mutton pointed tooth 6b and at least one circle arc double wedge 6c, described arc double wedge 6c is positioned at the top of described pointed tooth 6b, the end of each pointed tooth 6b and the exterior surface (i.e. point cantact) of valve rod 2, each end face of arc double wedge 6c fits (namely face contacts) with the outer surface of valve rod 2.
See shown in Fig. 2 to Fig. 5, in the present embodiment, the pointed tooth 6b often enclosed, the arc double wedge 6c often enclosed all are uniformly distributed, and scraper 6 can be removed more equably when striking off valve rod 2 fouling; Further, the madial wall of scraper body 6a is provided with two circle pointed tooth 6b and two circle arc double wedge 6c, and two circle pointed tooth 6b shift to install, and two circle arc double wedge 6c shift to install, and make the face of effectively striking off of scraper 6 comparatively large, automatically cleaning effect is better.Wherein, the pointed tooth 6b quantity of often enclosing is 8 ~ 10 (preferably 8); The arc double wedge 6c quantity of often enclosing is 3 ~ 5 (preferably 3).In addition, scraper 6 adopts tungsten carbide material to make, and hardness reaches HRA >=88, effectively can remove various obstinate fouling, and antiscour, resistance to corrosion are strong, long service life.
Shown in Figure 6, the utility model scraper 6 is applied to black water regulating valve, and black water regulating valve comprises the valve body 4 of hollow structure, the top of valve body 4 has opening 4a, sidepiece has water inlet flow channel 4b, and bottom has outlet passage 4c, and the madial wall of outlet passage 4c is provided with valve seat 8; The opening 4a place at valve body 4 top is fixed with valve gap 3, the top of valve gap 3 is provided with drive unit 1, the center vertical of valve gap 3 has through hole, valve rod 2 is fitted with in through hole, be filled with filler 5 between valve gap 3 and valve rod 2, the upper end of valve rod 2 is connected with drive unit 1, and it is inner that lower end stretches to valve body 4 through the opening 4a of valve body 4, and the lower end of valve rod 2 is provided with spool 7, valve seat 8 is positioned at immediately below spool 7.Wherein, scraper 6 is installed between valve gap 3 and valve rod 2.
During use, when valve rod 2 moves up and down under the drive of drive unit 1, the often circle pointed tooth 6b of scraper 6 and valve rod 2 surface form point cantact, the fouling on valve rod 2 surface can be struck off along strip; The often circle arc double wedge 6c of scraper 6 contacts with the surperficial forming surface of valve rod 2, can be that bulk is struck off by the fouling on valve rod 2 surface, thus achieve the automatically cleaning of valve rod 2 dirt, and not only elimination effect is desirable, and rapid operation, convenient.
The utility model is not only confined to above-mentioned preferred forms; anyone can draw other various forms of products under enlightenment of the present utility model; no matter but any change is done in its shape or structure; every have identical with the utility model or akin technical scheme, all within its protection domain.
Claims (6)
1. one kind for removing the scraper of valve rod dirt, it is characterized in that: the scraper body (6a) comprising annular, the madial wall of scraper body (6a) is provided with at least one circle pointed tooth (6b) and at least one circle arc double wedge (6c), described arc double wedge (6c) is positioned at the top of described pointed tooth (6b), the end of each pointed tooth (6b) and the outer surface point cantact of valve rod (2), the end face of each arc double wedge (6c) and the appearance plane-plane contact of valve rod (2).
2. as claimed in claim 1 for removing the scraper of valve rod dirt, it is characterized in that: the pointed tooth (6b) often enclosed, the arc double wedge (6c) often enclosed all are uniformly distributed.
3. as claimed in claim 1 for removing the scraper of valve rod dirt, it is characterized in that: the madial wall of described scraper body (6a) is provided with two circle pointed tooths (6b) and two circles arc double wedge (6c), the pointed tooth of two circles pointed tooth (6b) shifts to install, and the double wedge of two circles arc double wedge (6c) shifts to install.
4. as claimed in claim 1 for removing the scraper of valve rod dirt, it is characterized in that: pointed tooth (6b) quantity of often enclosing is 8 ~ 10; Arc double wedge (6c) quantity of often enclosing is 3 ~ 5.
5. as claimed in claim 4 for removing the scraper of valve rod dirt, it is characterized in that: pointed tooth (6b) quantity of often enclosing is 8; Arc double wedge (6c) quantity of often enclosing is 3.
6. the scraper for removing valve rod dirt according to any one of claim 1 to 5, is characterized in that: this scraper adopts tungsten carbide material to make, and hardness is HRA >=88.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520728403.8U CN205020429U (en) | 2015-09-18 | 2015-09-18 | A scraper for drive valve rod dirt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520728403.8U CN205020429U (en) | 2015-09-18 | 2015-09-18 | A scraper for drive valve rod dirt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205020429U true CN205020429U (en) | 2016-02-10 |
Family
ID=55252996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520728403.8U Active CN205020429U (en) | 2015-09-18 | 2015-09-18 | A scraper for drive valve rod dirt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205020429U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108953665A (en) * | 2018-07-05 | 2018-12-07 | 上海美科阀门有限公司 | One kind having cleaning function high temperature and pressure multichannel shunt reversing valve |
| CN112605826A (en) * | 2020-11-18 | 2021-04-06 | 山东南山铝业股份有限公司 | Electrolytic aluminum anode bar cleaning equipment |
-
2015
- 2015-09-18 CN CN201520728403.8U patent/CN205020429U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108953665A (en) * | 2018-07-05 | 2018-12-07 | 上海美科阀门有限公司 | One kind having cleaning function high temperature and pressure multichannel shunt reversing valve |
| CN108953665B (en) * | 2018-07-05 | 2023-11-03 | 上海美科阀门有限公司 | High-temperature high-pressure multichannel shunt reversing valve with cleaning function |
| CN112605826A (en) * | 2020-11-18 | 2021-04-06 | 山东南山铝业股份有限公司 | Electrolytic aluminum anode bar cleaning equipment |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |